Bip39 Mnemonic Generator. Is passphrase similar to PIN? No, a passphrase is just not similar to a PIN. A passphrase, inside the context of Bitcoin wallets, is an extra layer of protection to your wallet that actually works along with your seed phrase to encrypt and shield your wallet. A https://sociallweb.com/story4189136/bip39-wallets-https-linktr-ee-bip39-bip39-words-secrets